Rename QmitkSliderNavigatorWidget
Summary:
Rename QmitkSliderNavigatorWidget to better reflect the widget type
The widget does not only contain a slider but also a spin box.
It is used to navigate the stepper of a SliceNavigationController and reflects
the current position of a time / slice stepper.
Clean QmitkSliceNavigationWidget
Adapt Examples to use the new class name
Adapt modules to use the new class name
Adapt plugins to use the new class name
Test Plan: CI testing
Reviewers: kislinsk, O1 MITK Reviewer Group I, O3 MITK Reviewer Group II
Reviewed By: kislinsk, O1 MITK Reviewer Group I, O3 MITK Reviewer Group II
Subscribers: kalali, kislinsk
Maniphest Tasks: T29316
Differential Revision: https://phabricator.mitk.org/D719